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56,266
RESULTS

Media Type
11
collections
53,614
texts
1,141
audio
941
movies
373
images
166
education
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Topics & Subjects
39,115
Pollution
38,565
EPA
38,555
Environmental Protection Agency
38,544
Mining
38,539
Gold King Mine
38,539
Gold King Mine disaster
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Collection
38,547
National Security Internet Archive (NSIA)
5,961
Education Resources Information Center (ERIC) Archive
4,019
American Libraries
2,413
NASA Network Resource and Training Site
1,235
FEDLINK - United States Federal Collection
1,069
Montana State Library
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Creator
38,539
environmental protection agency
5,969
eric
2,413
nasa technical reports server (ntrs)
898
defense technical information center
217
nasa
200
san francisco (calif.). dept. of city planning
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Language
54,486
English
66
undetermined
20
French
18
German
14
Portuguese
12
Spanish
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